(19)

(11)

EP 2 684 104 A2

(12)

(88) Date of publication A3: 20.12.2012 (43) Date of publication: 15.01.2014 Bulletin 2014/03 (21) Application number: 12716798.9 (22) Date of filing: 07.03.2012

(51) International Patent Classification (IPC):  G06F 1/26(2006.01) G06F 11/30(2006.01) (86) International application number: PCT/US2012/027994 (87) International publication number: WO 2012/122225 (13.09.2012 Gazette 2012/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 08.03.2011 US 201113043213 (71) Applicant: Cisco Technology, Inc. San Jose, CA 95134 (US)	(72) Inventors: SHAFFER, Shmuel Palo Alto, CA 94301 (US) VASSEUR, Jean-Philippe F-38410 Saint Martin D'Uriage (FR) SHETTY, Sandeep, Jay San Jose, CA 95136 (US) (74) Representative: Kazi, Ilya  Mathys & Squire LLP 120 Holborn London EC1N 2SQ London EC1N 2SQ (GB)